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Let veca and vecb be two unit vectors su...

Let `veca` and `vecb` be two unit vectors such that `|veca+vecb|=sqrt3` if `vecc=veca+2vecb+3(vecaXvecb)` then `2|vecc|` is equal to

A

`sqrt(55)`

B

`sqrt(51)`

C

`sqrt(43)`

D

`sqrt(37)`

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MCGROW HILL PUBLICATION-VECTOR ALGEBRA-QUESTIONS FROM PREVIOUS YEARS. AIEEE/JEE MAIN PAPERS
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  18. Let veca = 2hati+(lambda)1hatj+3hatk , vec(b)=4hati+(3-(labda)2)hatj+6...

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